How to change the binder repository in thebe config?

[hackenjoe]

Hi I have a custom binding repository that I would like to embed in thebelab and run python scripts from there. I put the whole thing in a juptyter book, strictly by template, but every time it says:

Waiting for kernel...

<script type="text/x-thebe-config">
  {
    requestKernel: true,
    binderOptions: {
	  repo: "hackenjoe/requirements",
	  ref: "master",
    },
	kernelOptions: {
	  kernelName: "python3",
	}
  }
</script>
<script src="https://unpkg.com/thebe@latest/lib/index.js"></script>

Is there an error or misunderstanding? (repo: https://github.com/hackenjoe/requirements)